OPA343NA/250 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The OPA343NA/250 is a single-channel, single-supply, rail-to-rail CMOS operational amplifier from Texas Instruments MicroAmplifier series. It features ultra-low bias current of 60 pA, 1 MHz gain-bandwidth product, and operates from 2.5 V to 5.5 V supply. Available in SOT-23-5 package with worldwide stock and fast shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- OPA343NA/250 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9563(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of OPA343NA/250?
- Rail-to-rail input and output operation enables maximum dynamic range in single-supply applications down to 2.5 V
- Ultra-low input bias current of 60 pA (max) makes it ideal for high-impedance sensor interfaces
- Compact SOT-23-5 package with MicroAmplifier design minimizes board space in portable and space-constrained designs
- Wide common-mode rejection ratio of 74 dB min (92 dB typical) ensures accurate signal amplification in noisy environments
What is OPA343NA/250 used for?
The OPA343NA/250 is well-suited for battery-powered portable instruments, photodiode transimpedance amplifiers, and precision signal conditioning circuits where single-supply rail-to-rail operation is essential. Its ultra-low bias current makes it an excellent choice for interfacing with high-impedance sensors such as pH electrodes, gas sensors, and capacitive transducers. The device also excels in data acquisition front-ends and active filter stages within IoT devices and medical monitoring equipment.
What are the specifications of OPA343NA/250?
| Pbfree Code | Yes |
| YTEOL | 1 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00006 µA |
| Bias Current-Max (IIB) @25C | 0.00001 µA |
| Common-mode Reject Ratio-Min | 74dB |
| Common-mode Reject Ratio-Nom | 92dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.00001 µA |
| Input Offset Voltage-Max | 8000 µV |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | NO |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 6V/us |
| Supply Current-Max | 1.25mA |
| Supply Voltage Limit-Max | 7.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 5500 |
| Voltage Gain-Min | 40000 |
| Wideband | NO |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the OPA343NA/250 datasheet?
OPA343NA/250 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for OPA343NA/250?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage does the OPA343NA/250 require?
The OPA343NA/250 operates from a single supply voltage ranging from 2.5 V to 5.5 V, making it suitable for battery-powered and low-voltage 3.3 V or 5 V system designs without a split supply.
How low is the input bias current on the OPA343NA/250?
The OPA343NA/250 features a maximum input bias current (IIB) of 60 pA at room temperature, with a typical value of 10 pA at 25°C. This extremely low bias current is critical for high-impedance sensor interfaces such as photodiodes and electrochemical sensors.
Which package does the OPA343NA/250 use?
The OPA343NA/250 is housed in a 5-pin SOT-23 surface-mount package, a compact industry-standard footprint ideal for space-constrained PCB layouts in portable and handheld electronics designs.
Where is the OPA343NA/250 commonly used?
Common deployment scenarios include transimpedance amplifiers for photodiodes, active filters, precision signal conditioning for sensors, battery-powered instrumentation, data acquisition front-ends, and medical monitoring devices that require rail-to-rail single-supply operation with minimal input current loading.
Does the OPA343NA/250 meet RoHS lead-free requirements?
Yes, the OPA343NA/250 is fully RoHS compliant and lead-free, conforming to EU Restriction of Hazardous Substances directives, making it suitable for environmentally compliant product designs sold in global markets.
What gain-bandwidth product does the OPA343NA/250 provide?
The OPA343NA/250 delivers a 1 MHz gain-bandwidth product, appropriate for audio-frequency amplification, low-speed data acquisition, and sensor signal conditioning where high-frequency operation is not required.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.0717 | $3.07 |
| 2+ | $1.4805 | $2.96 |
| 36+ | $1.2750 | $45.90 |
| 119+ | $1.1900 | $141.61 |
| 400+ | $0.9563 | $382.52 |
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